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Published January 24, 1994 | Published
Journal Article Open

Evidence of a Bose-glass transition in superconducting YBa2Cu3O7 single crystals with columnar defects


Experimental evidence of a Bose-glass transition in the vortex state of YBa2Cu3O7 single crystals with columnar defects along the c axis is manifested by the universal critical exponents ν⊥, ν∥ (≡ζν⊥), and z' derived from the (d'+1)-dimension critical scaling of the frequency-dependent ac resistivity from 102 to 2.5×106 Hz. The Bose-glass transition temperature (TBG) is found to decrease with the increasing angle (θ) between the applied magnetic field and the c axis. The finding that ζ=ν∥/ν⊥=1.1±0.1

Additional Information

© 1994 The American Physical Society. Received 20 August 1993. This work is jointly supported by ONR Grant No. N00014-91-5-1556, the David and Lucile Packard Foundation, NASA/OACT, and NSF Grant No. DMR90-11230. The 0.9 GeV Pb ion irradiation was performed at Grand Accelerateur National d'Ions Lourds (GANIL) in Caen, France. We thank Nils Asplund, A. P. Rice, and Amit Mehra for technical assistance.

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August 22, 2023
August 22, 2023